Reference:Evans1971a
Verbatim text: Evans, A. M. 1971. Polypodium. In: A. M. Evans, ed. 1971. A Review of Systematic Studies of the Pteridophytes of the Southern Appalachians. Blacksburg.
Author: Evans, A.M.
Year: 1971
Title: Polypodium
Editor: Evans, A.M.
Source: A Review of Systematic Studies of the Pteridophytes of the Southern Appalachians